Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 14 Jun 2023 02:16:21 +0200 | From | Andi Shyti <> | Subject | Re: [PATCH v2] usb: typec: ucsi: Mark dGPUs as DEVICE scope |
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Hi Mario,
On Thu, May 18, 2023 at 11:11:50AM -0500, Mario Limonciello wrote: > power_supply_is_system_supplied() checks whether any power > supplies are present that aren't batteries to decide whether > the system is running on DC or AC. Downstream drivers use > this to make performance decisions. > > Navi dGPUs include an UCSI function that has been exported > since commit 17631e8ca2d3 ("i2c: designware: Add driver > support for AMD NAVI GPU"). > > This UCSI function registers a power supply since commit > 992a60ed0d5e ("usb: typec: ucsi: register with power_supply class") > but this is not a system power supply. > > As the power supply for a dGPU is only for powering devices connected > to dGPU, create a device property to indicate that the UCSI endpoint > is only for the scope of `POWER_SUPPLY_SCOPE_DEVICE`. > > Link: https://lore.kernel.org/lkml/20230516182541.5836-2-mario.limonciello@amd.com/ > Reviewed-by: Evan Quan <evan.quan@amd.com> > Tested-by: Evan Quan <evan.quan@amd.com> > Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Thanks, Andi
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